Home / 11,491.40-15,858.16-6,714.62

Finding the Fourth Proportional to 11,491.40, 15,858.16 and 6,714.62

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Solution

The fourth proportional to 11,491.40, 15,858.16 and 6,714.62 is: 9,266.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.40 : 15,858.16 = 6,714.62 : x
  2. Step 2: Convert to fraction form
    11,491.40/15,858.16 = 6,714.62/x
  3. Step 3: Cross multiply
    11,491.40x = 15,858.16 × 6,714.62
  4. Step 4: Simplify right side
    11,491.40x = 106,481,518.30
  5. Step 5: Solve for x
    x = 106,481,518.30/11,491.40
  6. Step 6: Final answer
    x = 9,266.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.